Sen. Max Baucus (D-Mont.) (Photo by Chip Somodevilla/Getty Images)

More revelations about political targeting inside the Internal Revenue Service are coming, the Senate Finance Committee Chairman Max Baucus (D-Mont.) predicted.

"I have a hunch that a lot more is going to come out, frankly," the retiring senator said in a Bloomberg News interview airing Sunday. "It's broader than the current focus."

His committee will investigate the extra IRS scrutiny given to groups applying for tax-exempt status with the words "patriot" or "tea party" in their names, as will several committees in the House.

"I think it's important that we have the hearings, and I think that will encourage other information to come out that has not yet come out," he said. "I suspect that we will learn more in the next several days, maybe the next couple, three weeks, which adds more context to all of this."

But, he argued, the IRS scandal will not slow down tax reform efforts.

"This actually leads to new momentum for tax reform because this is an important provision in the code. And this provision has raised lots of questions now," he said.

House Ways and Means Committee Chairman Dave Camp (R-Mich.) agreed on the same program, saying "we're both very committed to doing" tax reform.