President Joe Biden will likely increasingly rely on the power of his pen to implement left-leaning priorities as bills begin to pile up in the evenly divided Senate, experts say.

After 100 days in the White House, Biden has left a long trail of executive action paperwork behind him. As of mid-April, for instance, he had signed 40 executive orders, outpacing former Presidents Barack Obama and Donald Trump. Biden’s 100th day, an artificial presidential marker since Franklin Roosevelt, delineates the end of the administration’s set-play politics as it pivots to deal with more unanticipated matters amid the pandemic.