McCutcheon decision has allowed at least $39 million more in presidential election so far

In 2014, the Supreme Court’s decision in McCutcheon v. Federal Election Commission (FEC) eliminated the so-called aggregate limits on political contributions, that placed a ceiling on the total amount a single donor could give across campaigns, PACs and federal and state party committees.
Source: McCutcheon decision has allowed at least $39 million more in presidential election so far