• "The battle over voting rights will expand this week as lawmakers in Missouri are expected to support a proposed constitutional amendment to enable election officials to require proof of citizenship from anyone registering to vote," the New York Times reports. "The measure would allow far more rigorous demands than the voter ID requirement recently upheld by the Supreme Court, in which voters had to prove their identity with a government-issued card."
• "Proponents of requiring voters to come to the polls with identification are again pressing their case in several statehouses, this time bolstered with a Supreme Court ruling that upheld the constitutionality of an Indiana voter ID law," CongressDailyAM (subscription) reports.
• "The long, fascinating spectacle of the presidential primaries has all but obscured their potential impact on American politics: Campaign 2008 may break Washington's gridlock by reviving the long-dormant political center," the Wall Street Journal reports. Both Sen. Barack Obama, D-Ill., and Sen. John McCain, R-Ariz., "got ahead largely by arguing they have unique abilities to bring people together in Washington."
• McCain and Obama "are already drawing up strategies for taking each other on in the general election, focusing on the same groups -- including independent voters and Latinos -- and about a dozen states where they think the contest is likely to be decided this fall," the New York Times reports. "In a sign of what could be an extremely unusual fall campaign, the two sides said Saturday that they would be open to holding joint forums or unmoderated debates across the country in front of voters through the summer."
• "Most publicly released polls show" Sen. John Sununu, R-N.H., "down double digits to his challenger, former Gov. Jeanne Shaheen (D), in a state where the Democratic wave hit particularly hard in 2006," Roll Call (subscription) reports.
• USA Today looks at where Sen. Hillary Rodham Clinton, D-N.Y., Obama and McCain stand on sports issues, from Title IX to performance-enhancing drugs.
Dems 2008: Kennedy Questions 'Dream Ticket'
• A "wiseguy consensus seems to have settled on... the idea that" Clinton "has so weakened" Obama "in the race for the Democratic nomination -- so diminished him, distracted him, exhausted him -- that he could be a grievously damaged nominee," the New York Times reports. "But there is a competing view that says that" Clinton, "rather than being a spoiler, has in fact been an unwitting mentor to" Obama, "a teaching adversary who made him better."
• "For the first time, a major political party is on the brink of choosing an African American as its candidate for president, but when Democratic strategists and other analysts look ahead, they don't see race" as Obama's biggest challenge, the Los Angeles Times reports. "If he's chosen as the Democratic nominee, his race might be an issue, but experience and social issues loom much larger."
• While former Democratic presidential candidate John Edwards "has not endorsed either candidate, he made it clear on the CBS News program 'Face the Nation' that he saw little chance that" Clinton "could manage a come-from-behind victory," the New York Times reports.
• "Don't count Massachusetts Sen. Edward Kennedy as a supporter of an Obama-Clinton ticket, the Boston Globe reports. Kennedy "didn't name names, but he said Obama should pick someone who 'is in tune with his appeal for the nobler aspirations of the American people'" as a running mate.
• The Wall Street Journal reports on Obama's relationship with Valerie Jarrett, "one of his oldest confidantes and someone widely tipped for a high-profile position in an Obama administration," and "an adviser he can count on for unvarnished opinions."
• Obama erased Clinton's "once-imposing lead among superdelegates Saturday when he added more endorsements from the group of Democrats who will decide the party's nomination for president," USA Today reports.
• The New York Times looks at Obama's early political career and how it prepared him for his presidential run.
• "With her campaign falling ever deeper into debt," Clinton "spent a rainy Mother's Day seeking votes ahead of Tuesday's primary" in West Virginia, "turning a deaf ear to calls for her to leave a Democratic presidential contest she has little hope of winning," the Washington Post reports. "Clinton aides continued to insist that she will remain in the race even while confirming that she is $20 million in debt."
• "Former President Bill Clinton said Sunday that" Hillary Clinton "refuses to be counted out in Oregon -- or in the larger battle for the Democratic presidential nomination," the Oregonian reports. "Clinton said at five stops across Oregon that" she "isn't ready to concede anything."
• But Clinton's campaign chairman, Terry McAuliffe, "admitted Sunday that 'something big would have to happen' for his candidate to overtake" Obama, the Politico reports.
• With "Clinton's campaign running on empty with little hope of victory, the New York senator's allies and independent observers alike have begun to consider which" way she'll choose to drop out of the presidential race, the Politico reports.
• Clinton's "Rose Law Firm billing records, found in the White House residence in January 1996 two years after they had been subpoenaed by government regulators, disappeared shortly after the first lady was warned that the firm's billing problems were 'very serious' and the then-ongoing Whitewater investigation could result in criminal charges, newly obtained records show," the Washington Times reports.
GOP 2008: McCain Unveils Climate Change Plan
• McCain "plans to outline his vision for combating global warming in a major speech today in Portland, Ore.," the Washington Post reports. "An examination of McCain's voting record shows an inconsistent approach to the environment: He champions some 'green' causes while casting sometimes contradictory votes on others."
• The Wall Street Journal also reports on McCain and his environmental positions.
• In New Jersey on Friday, "McCain said he believed that comments made by a Hamas leader approving" Obama's "candidacy were 'a legitimate point of discussion,' and he went on to accuse" Obama "of agreeing to negotiate with the president of Iran," the New York Times reports.
• "The public relations executive that" McCain's "campaign tapped to run the Republican National Convention this summer resigned his post Saturday after a magazine reported that his firm had lobbied for the military junta that runs Myanmar," the New York Times reports.
• McCain economic advisor Carly Fiorina "said Sunday that she couldn't name a credible economist who supported the presumptive Republican presidential nominee's proposal to suspend the federal gas tax for the summer," the Los Angeles Times reports. She "scoffed at the lack of support from economic analysts. 'I don't think it matters,' she said."
• "McCain is seizing the opportunity to challenge the Democrats for a group that hasn't gone strongly Republican since the Ronald Reagan era" -- 18- to 29-year-olds, AP reports.