3) We reported on Monday that former Democratic Sen. Bob Kerrey has done an about face and will run for the Senate in Nebraska, less than a month after he announced that he would not run. His campaign manager from previous races, Paul Johnson, says he has not made a final decision yet but is reconsidering. One man who is not happy about the news: Democrat Chuck Hassebrook, the only announced Democratic candidate. Hassebrook decided to run after consulting with Kerrey. Here's what he told the Lincoln Journal-Star: Daily Kos Elections floats an interesting possibility: Could this whole maneuver have been Kerrey's plan all along? Since incumbents must file -- for any office, even if not their own -- before non-incumbents, meaning the window for GOP Gov. Dave Heineman to run has now closed. 2) Today, voters go to the polls in Michigan and Arizona today, with Mitt Romney and Rick Santorum squaring off. The main focus is in Michigan, and National Journal's Alex Roarty lays out the stakes ahead of today's elections: Stay tuned to NationalJournal.com tonight for analysis and results. 1) Newt Gingrich isn't a threat to win anything tonight and won't even be in either state after the polls close. But he apparently hasn't lost the faith of his biggest backer: The Washington Post reports that Sheldon Adelson is making another "substantial" donation -- at least on par with the $5 million he and his family have given before -- to a pro-Gingrich super PAC -- which is launching a TV ad blitz in 4 Super Tuesday states.