Presumably, that means there are now at least 47 votes in Senate, as well as 251 votes in the House (including 22 Democrats), to delay the central provision of the unpopular law. House leadership is reportedly considering attaching a one-year delay of the individual mandate to a revised version of the continuing resolution to fund the government.

The announcement from Manchin, who is not up for reelection until 2018, could put pressure on his colleagues facing tough races in 2014, such as Senators Kay Hagan (D., N.C.), Mary Landrieu (D., La.), Mark Pryor (D., Ark.), and Mark Begich (D., Alaska).