WASHINGTON — The White House said Friday that President Joe Biden will not block the handover of documents sought by a House committee investigating the Jan. 6 insurrection at the U.S. Capitol, setting up a showdown with former President Donald Trump, who wants to shield those White House records from investigators.

The House committee investigating the insurrection, which formed over the summer, now has the momentous task of sorting through the details and obtaining documents and testimony from witnesses who may or may not be cooperative.

And the jockeying between the two administrations, Congress and the witnesses is certain to delay the investigation and set the stage for messy litigation that could stretch well into 2022.