Vivek
Ramaswamy

October 11 reporting confirmed Ramaswamy had endorsements from President Donald Trump, Vice President JD Vance, and former Ohio Governor Mike DeWine.

Decision Desk HQ's polling average showed Acton ahead by about four points as of October 11, with the contest rated a toss-up. Trump and Vance were blitzing Ohio to support Republican candidates including Ramaswamy.

Vice President JD Vance appeared with Ramaswamy at a Republican rally in Ohio, praising his business experience and proposals including property-tax relief, and formally endorsed his candidacy.

Campaign finance records disclosed a $5 million personal check from Ramaswamy to his campaign. His total personal contributions and loans reached $36.3 million. The next filing was due October 22.

A co/efficient poll of 925 likely voters conducted October 5–6 found Ramaswamy leading Acton 45% to 43%, providing a boost after a string of unfavorable polls.

A CNN/SSRS poll of 760 likely voters conducted September 29–October 5 found Acton leading Ramaswamy 50% to 42%, with a margin of error of ±4.5 points.

Ramaswamy appeared on a podcast discussing his tax proposals, school policy positions, and the controversy surrounding Amy Acton's refusal to debate him. Mutual campaign attack ads were also noted, including Democratic ads about a drug Ramaswamy was associated with.

Democratic nominee Amy Acton announced she would not debate Ramaswamy, citing his attacks on her and her family and calling him a 'chronic liar.' Ramaswamy rejected the characterization and criticized her decision not to debate.

A New York Times/Siena poll of 616 voters conducted September 22–October 1 put Acton ahead 49% to 45%, with a margin of error of ±4.5 points.

Roll Call reported on debate demands and dodges in various races, including the Ohio governor's contest between Ramaswamy and Acton.

Campaign records showed Ramaswamy's campaign spent nearly $690,000 on aircraft leasing. A former Brown County Republican Party chairman criticized the spending, and a campaign-finance watchdog raised questions because the leased aircraft was connected to a Ramaswamy-linked company. No violation was established.

Ramaswamy, Ohio Senate President Rob McColley, and House Speaker Matt Huffman announced proposed legislation to suspend Ohio's gas and diesel taxes for 90 days—38.5 cents/gallon on gasoline and 47 cents on diesel—with lost revenue covered by state transportation and general-revenue funds.

Media reports confirmed the Ohio State Medical Association's political arm had endorsed Ramaswamy over Democratic opponent Dr. Amy Acton.

The Ohio State Medical Association's PAC endorsed Ramaswamy, with the association's president saying his vision better aligned with its legislative priorities. The endorsement came from the political arm, not a membership vote.