New York City Mayor Michael Bloomberg (I) is set to host a fundraiser for Senate Majority Leader Harry ReidHarry ReidFeinstein after dinner with Clinton: She has 'accepted' her loss Clintons remember John Glenn as a 'uniquely American hero' Clinton reappears on Capitol Hill for Reid send-off MORE (D-Nev.) in September.

Ira Stoll has a copy of the invitation, which lists Sen. Charles SchumerCharles SchumerSenate Dems hold out on spending deal, risking shutdown Dems see ’18 upside in ObamaCare repeal Confirm Gary Richard Brown for the Eastern District of New York MORE (D-N.Y.) as one of the guests. The event will take place in Bloomberg's home in New York Sept. 20. Tickets for the event start at $1,000 — raising $10,000 gets a donor billing as an event "chair."  

Bloomberg and Reid are a bit of an odd pair, given that Reid recently broke with President Obama on his support for a planned Islamic center and mosque near Ground Zero in New York. Reid became the most prominent Democrat to say the project should be built somewhere else. 

Bloomberg is one of the project's strongest defenders and has assailed opponents of the plan. Earlier this month, he said those who spoke out against the project should be "ashamed." 

Bloomberg has endorsed and held fundraising events for both Republicans and Democrats this cycle. He is backing Sen. Michael BennetMichael BennetSenate passes college anti-Semitism bill Speculation and starting points: accreditation, a new administration and a new Congress The untold stories of the 2016 battle for the Senate MORE (D-Colo.) and Rep. Joe Sestak (D-Pa.) in their Senate races. He is also supporting the Senate bids of Reps. Mike Castle (R-Del.) and Mark KirkMark KirkJuan Williams: McConnell won big by blocking Obama Battle for the Senate: Top of ticket dominates The untold stories of the 2016 battle for the Senate MORE (R-Ill.).