Billionaire Seahawks owner and Microsoft co-founder Paul Allen this year has made his largest-ever foray into congressional politics, donating $100,000 to a group aiming to keep Republicans in control of the U.S. House of Representatives. The June 14 donation, disclosed in mid-July, went to Protect the House, a committee headed by House Majority Leader Kevin McCarthy, R-Calif. It’s the biggest check Allen has ever sent to a federal political candidate or committee, according to a review of Federal Election Commission (FEC) filings.