WASHINGTON — President Donald Trump’s pick for national intelligence director, Texas Rep. John Ratcliffe, withdrew from consideration Friday after just five days as he faced growing questions about his experience and qualifications. The move underscored the uncertainty over his confirmation prospects. Democrats openly dismissed the Republican congressman as an unqualified partisan, and Republicans offered only lukewarm and tentative expressions of support.

The announcement leaves the intelligence community without a Senate-confirmed leader as the U.S. government grapples with North Korea’s nuclear ambitions, the prospect of war with Iran, and anticipated efforts of Russia to interference in the American political system.

In a tweet Friday, Trump said Ratcliffe had decided to stay in Congress so as to avoid “months of slander and libel.”

Trump didn’t cite specific media reports, though multiple stories in the last week have questioned Ratcliffe’s qualifications and suggested that he had misrepresented his experience as a federal prosecutor in Texas.

Ratcliffe is a frequent Trump defender who fiercely questioned former special counsel Robert Mueller during a House Judiciary Committee hearing last week.

Mueller laid bare concerns that Russia was working to interfere with U.S. elections again, but Ratcliffe remained focused on the possibility that U.S. intelligence agencies had overly relied on unverified opposition research in investigating the Trump campaign.

Ratcliffe in a statement said he remained convinced he could have done the job “with the objectivity, fairness and integrity that our intelligence agencies need and deserve. However, I do not wish for a national security and intelligence debate surrounding my confirmation, however untrue, to become a purely political and partisan issue.”