Billionaire Republican donors Sheldon and Miriam Adelson have pumped $500,000 into a defense fund set up to help Donald Trump’s aides cover their legal costs associated with Robert Mueller’s investigation into Russian meddling in the 2016 election. The Patriot Legal Expense Fund Trust was set up last year to help campaign aides caught up in the Mueller investigation pay for costly legal bills. The Adelsons each contributed $250,000 to the fund on Oct. 1, Politico reports, and were the only people who gave money to the fund from October to the end of 2018. The new disclosure, filed Thursday, shows the fund paid out more than half a million dollars to law firms between October and December. Real-estate mogul Geoffrey Palmer contributed to the fund earlier in the year.