Actually, the number 800-829-8374 is an in-house IRS line used to collect full payment for unpaid tax bills. It is on the official statements they send out with the notice of past due amounts.
The Senate's so-called Gang of 8 has gained national attention in the past week by announcing sweeping plans for bipartisan immigration reform.
The signatories included the Congressional Black Caucus Chair Maxine Waters, the president of the National Association for the Advancement of Colored People (NAACP), Kweisi Mfume, the former U.S. Ambassador to Nigeria, Walter Carrington, Congresswomen Carolyn Kilpatrick and Cynthia McKinney, and Wyatt Tee Walker, president of the American Committee on Africa.