Nike co-founder Phil Knight made his largest ever donation to an Oregon political race this week, donating $500,000 to Rep. Knute Buehler’s gubernatorial campaign. The Bend lawmaker is trying to secure the Republican nomination in the race to become Oregon’s next governor.

Knight has a history of making six-figure political contributions, and has given to both Republican and Democratic candidates. But his $500,000 gift to Buehler is his largest to date.

The cash more than triples the amount of money Buehler has raised so far this year. But he still trails incumbent Gov. Kate Brown.

The Democrat hasn’t officially announced her intentions for next year’s election, but she’s been actively raising money and has well over $1 million in the bank.