CHARLES BABINGTON, Associated Press

WASHINGTON (AP) — One of the Obama administration’s harshest congressional critics will get a final high-profile shot Tuesday when the House Oversight Committee grills witnesses about the president’s health care overhaul.

California Republican Darrell Issa (EYE’-suh) will lead the questioning of former health legislation adviser Jonathan Gruber.

The MIT economist recently apologized for saying voters’ “stupidity” was vital to passing the health law in 2010.

The committee also will question Marilyn Tavenner, administrator of the Centers for Medicare and Medicaid Services.

Issa has used the committee chairmanship to probe and attack the administration on issues such as the Benghazi attacks, the IRS scandal and guns. Talk radio conservatives love him, but even some GOP colleagues say he overdoes the combative partisanship at times.

Issa will surrender the chairmanship next year.