The polls were conducted by Yang's firm -- Garin-Hart-Yang Research Group -- on March 19-20 and March 26-27. Each poll surveyed 405 likely primary voters and carries a margin of error of plus-or-minus 4.9 percentage points.
Polling in low-turnout primaries can be a challenging exercise, however. Earlier this month, in a Democratic primary in Illinois' 10th Congressional District, automated polls commissioned by progressive groups showed their preferred candidate leading the establishment-favored, more moderate candidate by large margins. But the progressive candidate, Ilya Sheyman, faltered
, and businessman Brad Schneider
is now Democrats' nominee against Rep. Robert Dold
Likewise, Garagiola has the support of most of the state's Democratic establishment, adding Gov. Martin O'Malley
on Thursday to a list of endorsers that also includes House Majority Whip Steny Hoyer
. But Delaney has been propelled by endorsements from the Washington Post
, in addition to Rep. Donna Edwards
, D-Md., and former President Bill Clinton
; Delaney was a bundler for Hillary Clinton
's 2008 presidential campaign.
The winner of next Tuesday's primary will take on Republican Rep. Roscoe Bartlett
in the November general election. When the Democratic-controlled state legislature redrew the congressional map, they added significant portions of Democrat-heavy Montgomery County to the octogenarian's district; his one-time GOP stronghold now leans Democratic.
Garagiola, who reported having just under $168,000 cash on hand in the campaigns latest filing with the Federal Election Commission (through March 14), has been outspent badly in the race. In the period between the start of this year and March 14, Delaney spent more than $1.5 million, more than four times Garagiola's outlays. Garagiola, however, is known as a spendthrift candidate, and he has not poured large amounts of money into paid media during his successful state Senate campaigns.
-- Scott Bland contributed to this post