President Joe Biden says he's "determined to get as much done" as he possibly can in his final six months in the White House as he tries to beat back a defining force that his lame-duck predecessors struggled to vanquish: diminished relevance.

Biden hopes to keep the spigot flowing with hundreds of billions of dollars in federal funding from a series of major legislative wins early in his term — signature policy victories that could be undone should Republican Donald Trump return to the White House.