State Sen. Brett Guthrie (R) held a commanding cash-on-hand lead over state Sen. David Boswell (D) at the end of June in the 2nd district race to replace retiring Rep. Ron Lewis (R).

Guthrie, who was unchallenged in his bid for the GOP nomination, had $661,000 in cash on hand at the end of the second quarter, while Boswell, who had to fight his way through a May primary, had just $45,000 on hand. Since being recruited by the national GOP to run for Lewis’ seat just before the January filing deadline, Guthrie raised about $766,000, with $364,000 of that coming during the second quarter. Boswell raised $125,000 in the second quarter and brought in $238,000 total for the cycle.

The well-funded Guthrie went on the air Monday with the first media buy of the general election campaign. The district-wide radio ad highlights Guthrie’s background, including his service in the famed 101st Airborne Division, and discusses his views on energy and gasoline prices.