At this point, i would seriously consider switching the bulk of your mreit investment to 25% AGNC and 75% MTGE. Its a good idea to go hybrid at this point, not just gov't agency with QE3 in effect. MTGE IS AGNC, same managers ect., but better because of the option to take whatever looks better at the time, gov't paper or private paper.
Especially when you consider the company has announced that it will buy back shares below book value of $32.49. It's no coincidence that today's low has been $32.50. Absent something unusual, that should be the floor. In the meantime, enjoy the 15% dividend you're not going to get anywhere else.
Furthermore, since it's not a qualified dividend, the tax scheme of whoever wins next Tuesday shouldn't affect AGNC since the 15% rate only applies to qualified dividends anyways.