Minority Leader John BoehnerJohn BoehnerLobbying World 'Ready for Michelle' PACs urge 2020 run News Flash: Trump was never going to lock Clinton up MORE (R-Ohio) believes there are 100 House seats in play this election year, but he won't say which races he is talking about.

The top-ranking House Republican told The Hill Wednesday that "there’s no formula, but it’s pretty clear which ones they are."

Other GOP leaders have predicted that Republicans will win back the House this fall, but most have refrained from offering specific numbers.

Republicans would need to win about 40 seats in the fall to regain control of the House. They suffered a major setback Tuesday when Democrats retained the late Rep. John Murtha's (D-Pa.) seat in a special election.

Rep. Jim Jordan (R-Ohio), who is involved in the Republican outreach effort to cultivate candidates this election cycle, surmised that BoehnerJohn BoehnerLobbying World 'Ready for Michelle' PACs urge 2020 run News Flash: Trump was never going to lock Clinton up MORE's 100 seats come from the districts that Sen. John McCainJohn McCainPentagon should have a civilian chief to give peace a chance McCain to support waiver for Mattis, Trump team says Senators crafting bill to limit deportations under Trump MORE (R-Ariz.) won in the 2008 presidential election, and districts held at some time by the GOP since 1994.

Boehner has stressed that he is not predicting Republicans will win 100 seats, but that 100 are up for grabs. Asked for a reaction to Boehner's claim during an interview on Wednesday, Speaker Nancy Pelosi (D-Calif.) told The Hill, "Let him think that."

Pelosi later said more than 200 House Democrats will "easily" be reelected in November.