In public and behind the scenes, Illinois Gov. JB Pritzker is leading efforts to push back on Donald Trump and challenging Democrats to do more to oppose the president’s actions.

A more aggressive Illinois Gov. JB Pritzker has emerged on the political stump in recent days — both in terms of what he is saying and where he is saying it. The new tone he has struck has led some to believe a presidential run is indeed in the offing.

Illinois Gov. JB Pritzker on Sunday took a stage commanded by past presidential hopefuls and implored Democrats to forcefully resist the Trump administration, while panning leaders in his own party for acting too timid for too long.