WASHINGTON (AP) - House Democrats ushered in a new generation of leaders on Wednesday with Rep. Hakeem Jeffries elected to be the first Black American to head a major political party in Congress at a pivotal time as long-serving Speaker Nancy Pelosi and her team step aside next year.

Showing rare party unity after their midterm election losses, the House Democrats moved seamlessly from one history-making leader to another, choosing the 52-year-old New Yorker, who vowed to “get things done” in the new Congress, even after Republicans won control of the chamber.

The closed-door vote was unanimous, by acclamation.

Wednesday’s internal Democratic caucus votes of Jeffries and the other top leaders came without challengers. Cheers broke out in the private meeting, where typically contested party elections unfolded instead like church service, a call-and-response affirming Democrats’ confidence in their choices, some in the room said.

The trio led by Jeffries, who will become the Democratic minority leader in the new Congress, includes 59-year-old Rep. Katherine Clark of Massachusetts as the Democratic whip and 43-year-old Rep. Pete Aguilar of California as caucus chairman. The new team of Democratic leaders is expected to slide into the slots held by Pelosi and her top lieutenants - Majority Leader Steny Hoyer of Maryland and Democratic Whip James Clyburn of South Carolina - as the 80-something leaders make way for the next generation.