WASHINGTON — If Democrats eliminate the filibuster, there is one senator who would have an outsized impact in the 50-50 chamber on issues that could reshape the nation’s future: infrastructure, immigration, gun laws and voting rights. That senator is Joe Manchin III of West Virginia.
There is also a senator whose opposition to eliminating the filibuster is a significant reason it may never happen. That senator, too, is Mr. Manchin.
“He should want to get rid of the filibuster because he suddenly becomes the most powerful person in this place — he’s the 50th vote on everything,” said Senator Chris Coons, Democrat of Delaware, sketching out the argument.
Mr. Manchin, however, does not see it that way. To the exasperation of Democrats, delight of Republicans and bewilderment of politicians who can’t understand why he wouldn’t want to wield more power, Mr. Manchin, a former governor of the state, isn’t budging.
He was less happy about Vice President Kamala Harris’s effort to nudge him on the legislation by making an appearance on a television affiliate in West Virginia to promote the bill without forewarning him. The clip went viral and, Mr. Manchin said, prompted cleanup conversations with Mr. Biden and the White House chief of staff, Ron Klain.
As for any pressure that he may feel on the filibuster, Mr. Manchin said he had reminded Senator Chuck Schumer, the majority leader, of how essential he was to providing Democrats a majority.
He said he had told Mr. Schumer, “I know one thing, Chuck, you wouldn’t have this problem at all if I wasn’t here.”
He is not the only impediment to the sort of expansive liberal agenda preferred by many congressional Democrats or even the only one still defending the filibuster. Other Senate Democrats, including Kyrsten Sinema of Arizona, also share his reluctance.