http://nymag.com/daily/intelligencer/2018/09/cory-booker-president-2020-election.html
Booker has eyes on the 2020 presidential race. My guess is he is positioning himself to be a 'political prisoner' when Trump drops the hammer on all this shit.
Booker, also as McCain did, very much wants to be president: “Of course the presidency will be something I consider. It would be irresponsible not to.” And there’s a lot about Booker to suggest he would be a strong contender in the 2020 primaries and a formidable contrast to Trump. He is a popular national figure with an Obama-like trajectory: a community organizer who served for years in local politics before becoming a senator in his mid-40s. He is also, like Obama, a black politician who talks with optimism and empathy about the country’s racial divide.