The White House on Tuesday defended Obamacare from a high-profile complaint from former President Clinton who called it a “crazy system” in which millions of additional people now have healthcare, but people who are unable to qualify for subsidies are getting “killed.”

When asked about Clinton’s criticism of the healthcare law and whether it gives more “fuel” to GOP critics, White House press secretary Josh Earnest Tuesday said Republicans have tried to provide “plenty of fuel of their own” to undermine the law. Republicans twice unsuccessfully tried to challenge the law at the Supreme Court and have spent millions of dollars trying to undermine and repeal it, he said.