Senate Democrats have been promised White House-level help in the battle to replace Sen. John Kerry in Massachusetts.
President Barack Obama, first lady Michelle Obama and former President Bill Clinton will all campaign for the Democratic candidate, according to a Democratic official.
Secretary of State Hillary Clinton, who Kerry is expected to replace, might also get involved.
“The [Democratic Senatorial Campaign Committee] and Senate Democratic leaders have received assurances that the White House will be all in,” said a Democratic official, speaking on condition of anonymity. “The president, the first lady, President Clinton and possibly Secretary Clinton will all campaign in state and fundraise to support the Democratic nominee.”