Murkowski (R-AK) and Max S. Baucus (D-MT).

CENTERFORSECURITYPOLICY: Center For Security Policy

This chorus is echoing across the liberal establishment, and Democrats used last week's Senate IRS hearing to complain that "a Mack truck is being driven through the 501(c)(4) loophole, " as Montana's Max Baucus put it.

WSJ: Review & Outlook: A Tax-Exempt IRS Primer

Grassley, who crafted the bill with the committee's ranking Democrat, Max Baucus, D-Montana, reminded his colleagues their bill reflects an evenly divided Senate where neither party's legislation can pass intact.

CNN: Senate poised for tax bill vote

Max Baucus -- where's Max?

WHITEHOUSE: President Obama Takes Questions from Senate Democrats

Charles Grassley, the ranking GOP member on the Senate Finance Committee, has been working with his counterpart Max Baucus to write his committee's bill.

FORBES: ObamaCare

"Mr. Lew is well-qualified to be the nation's next Treasury secretary, " said Finance Committee Chairman Max Baucus of Montana.

NPR: Senate Confirms Lew As Treasury Secretary

Max Baucus, Pat Toomey and Rob Portman, and U.S. Representative Jeb Hensarling.

FORBES: The Key To Job Growth Is On The Kitchen Table

Senate Finance Chairman Max Baucus, D-Montana, has said he thinks there's a fair chance a reform package could cover close to 95 percent of Americans.

CNN: Obama says immediate action needed on health care reform

Max Baucus and Jon Tester to press Singapore authorities about Mr. Todd's death.

WSJ: Singapore: Experts Agree U.S. Man's Apparent Suicide

The Senate Finance Committee's leaders, chairman Charles Grassley (R- Iowa) and ranking member Max Baucus (D-Mont.) have both pushed various enforcement and loophole closing measures.

FORBES: Raise Audits, Not Taxes