Former Rep. Joe DioGuardi (R-N.Y.) has decided to challenge Sen. Kirsten GillibrandKirsten Elizabeth GillibrandBritish health secretary fires back at Trump over universal health care claims Trump on Dems’ ‘universal' health-care push: ‘No thanks’ Gillibrand calls for DOJ to investigate US Olympic Committee over abuse scandal MORE (D-N.Y.), according to the Associated Press.

DioGuardi will announce his candidacy Tuesday at Grand Central Station.

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An accountant by trade, DioGuardi has written repeatedly about the need to control the nation's debt.

DioGuardi was first elected in 1984 and defeated by Rep. Nita Lowey (D-N.Y.) in 1988. His former district just north of New York City is solidly Democratic.

The Republican is the father of Kara DioGuardi, a judge on American Idol.

Former Bush adviser Dan Senor is reportedly considering a GOP challenge to Gillibrand. Billionaire Mort Zuckerman was also considering a bid but has decided against it.