In the month of April, I found myself saying “I agree with Trump” more than anytime ever. On China, Russia, NATO and Syria, President Trump signaled radical changes in policy, nearly the complete opposite of what he said as a candidate. All were changes for the good — that is, new policy positions that advance American security, prosperity and values. The lingering question is whether these recent statements signal a fundamental change in Trump’s thinking about foreign policy or rather short-term reversals that could be reversed again. Is he learning or ad-libbing? It’s too early to tell.