Rep. Dave Camp hailed the move as a "significant step forward" for his investigation.
"She won’t give us the answers? You’ve got to be kidding me," said Rep. Jim Jordan.
Rep. Marcia Fudge said his behavior at the IRS hearing was an "affront" to the public.
House GOP are heading toward a contempt vote against the former IRS official.
Senate Republicans questioned the level of the Obama administration’s tax hikes proposed in its fiscal 2015 budget, arguing that they could sap energy from economic growth.
Sen. Rob Portman (R-Ohio) expressed concern that the "steep tax increases" on investment income could weigh down economic growth and negate the benefit of $71 billion in additional revenue.
Treasury Secretary Jack Lew sparred with Senate Republicans on Wednesday over proposed changes to an IRS rule designed to clarify the definition of political activity allowed by certain non-profit organizations.
Republican Sens. Pat Roberts (Kansas) and Richard Burr (N.C.) each expressed concerns during a Senate Finance Committee hearing on the fiscal 2015 budget that expanding the rule could stifle political speech and, potentially, lead to more IRS targeting.
Bill Taylor, the attorney for the former IRS official at the center of the agency's targeting controversy, also warned Republicans against seeking to find her in contempt.
House Ways and Means Committee Chairman Dave Camp (R-Mich.) wouldn't say whether he'd seek a waiver to keep the gavel. Rep. Paul Ryan (R-Wis.) has suggested he's interested in taking over the powerful committee.
Rep. Elijah Cummings called the proceedings “un-American” before his microphone was cut off.
Here’s who won and lost in the president’s $3.9 trillion budget proposal.