As more names are thrown into the “Who Will Succeed DeMarco at FHFA” sweepstakes, the question increasingly being is asked is this: which candidate will placate Congressional Republicans? Republicans, so far, have held united against allowing Fannie Mae and Freddie Mac to write down the principal on underwater mortgages as a loan modification tool. Edward DeMarco, the acting director of the Federal Housing Finance Agency, of course, has shot down the idea numerous times.