For a Republican in Congress, signing the pledge not to increase taxes is all but required; pledge signers include all but 21 GOP members of Congress. The hottest pledge list, however, is the one to swear off earmarks. Since Rep. Jeff FlakeJeffrey (Jeff) Lane FlakeSpokesman: Flakeā€™s vote on tax reform will have nothing to do with Trump Trump slams Flake over hot-mic comments: Senator's career is 'toast' Bannon: McConnell 'picking up his game' because of our 'insurgent movement' MORE (R-Ariz.) signed the earmark pledge last summer, 36 others have joined him, including Rep. Judy Biggert (R-Ill.), who signed on Wednesday.

Biggert, in a press release, said that while she supports a moratorium on earmarks for all of Congress,