Multiple news sources have confirmed that John Boehner will be resigning from Congress at the end of next month. The NYTimes:

Speaker John A. Boehner will resign from Congress and give up his House seat at the end of October, according to aides in his office.

Mr. Boehner was under extreme pressure from the right wing of his conference over whether or not to defund Planned Parenthood in a bill to keep the government open.

MSNBC is reporting that the decision is in part to the potential shutdown and the animosity towards Boehner from some of the far right members of his caucus.