House Democrats are taking up two separate bills on immigration Thursday, marking the first time Congress will vote on a pathway for citizenship for undocumented immigrants since Democrats won slim majorities in both chambers of Congress with President Joe Biden in the White House.House Democrats are taking up two separate bills on immigration Thursday, marking the first time Congress will vote on a pathway for citizenship for undocumented immigrants since Democrats won slim majorities in both chambers of Congress with President Joe Biden in the White House.