WASHINGTON — House Republican leaders have announced they will advance this week an increase in the government’s borrowing cap that’s free of any add-ons.

House Speaker John Boehner announced the plan after a poll of the Republican rank and file failed to show enough support for a plan to tie the hike in the debt limit to a plan to reverse a recently passed cut to military pensions.

The Ohio Republican said he expected virtually all of President Barack Obama’s Democratic allies to vote for the so-called clean debt cap increase but that he would be one of the few Republicans to also back it in a vote on Wednesday.