A Year Later, Some Republicans Second-Guess Boycotting the Jan. 6 Panel

The four hearings held in the past few weeks by the House committee investigating the Jan. 6 attack, with their clear, uninterrupted narratives about President Donald J. Trump’s effort to undercut the peaceful transfer of power, have left some pro-Trump Republicans wringing their hands with regret about a decision made nearly a year ago.

Representative Kevin McCarthy of California, the minority leader, chose last summer to withdraw all of his nominees to the committee — amid a dispute with Speaker Nancy Pelosi over her rejection of his first two choices — a...