With a significant war chest, Mandel is favored by insiders to get the Republican nomination. Mandel raised a very comfortable $1.5 million in the third quarter compared to Brown's $1.25 million. Mandel had $3.3 million in the bank as of Sept. 30 and Brown had $4.2 million in cash on hand.
Mandel is in Washington, D.C., today for a fundraiser.
Roll Call Politics rates the Ohio Senate race Leans Democratic.
Former Sen. Scott Brown, R-Mass., candidate for U.S. Senate in New Hampshire, holds his hand over his heart during the singing of the national anthem as he waits to take the stage for his town hall campaign rally with Sen. John McCain at the Pinkerton Academy in Derry, N.H., on Monday, Aug. 18, 2014.