They're not the biggest political contributions in the state's history, but they're up there.
Microsoft co-founder Paul Allen says he has written a million-dollar check for a gun-control initiative.
And Seattle venture capitalist Nick Hanauer says he's doing the same.
My statement on a gun safety initiative in my home state of Washington:
— Paul Allen (@PaulGAllen) May 21, 2018
Initiative 1639 is a reasonable and necessary measure that will improve the safety of our schools and our communities, which is why I have contributed a million dollars to the campaign. 1/2
Read: What the Seattle City Council learned just two weeks before the head tax vote
The proposed ballot measure would raise the minimum age, as well as require safety training and background checks, to buy a military-style rifle in Washington state.
Other billionaires and businesses have spent more heavily to influence Washington voters.
The biggest single pulse of money into a Washington state election came seven years ago, when Costco wrote a check for nearly $9 million in its successful push to privatize liquor sales.
Read: 'We live in a jewel of a place that comes with wild risks'