CNN

U.S. Rep. Tom Reynolds' expected retirement may be another boon for Democrats in this year's election.

WASHINGTON (CNN) - U.S. Rep. Tom Reynolds, R-New York, will announce Thursday that he will retire at the end of his term in November, two senior Republican aides said.

Reynolds, who won his last election by a small margin, will be the 29th Republican to retire from the House of Representatives this term, setting up potential gains for Democrats.

"With today's announcement, five of six elected Republican leaders from the 2006 cycle have retired or quit," said Doug Thornell, press secretary for the Democratic Congressional Campaign Committee, in a statement.

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