Endangered Ohio Rep. John Boccieri (D) attended President Obama's speech on the economy in Cleveland on Wednesday.

Before Wednesday, it was unclear whether or not the freshman lawmaker would appear at the event with the president. Boccieri represents a district southwest of Cleveland that was represented by longtime GOP Rep. Ralph Regula before his retirement in the 2008 cycle.

Other Democrats who are facing tough reelection races, such as Sen. Russ Feingold (Wis.), have declined to appear alongside Obama in recent weeks. Feingold did not attend a Milwaukee Labor Day event at the same time as the president, saying that he had a prior engagement to participate in Labor Day activities in his home town.

Boccieri, considered one of the most vulnerable House Democrats in the 2010 field, appeared alongside six Ohio politicians, including his House colleagues Marcia Fudge (D) and Dennis Kucinich (D).

Polls have shown Boccieri trailing GOP challenger Jim Renacci.

Obama discussed proposals to boost the economy and job creation, including a permanent extension of a research-and-development tax credit.