It is likely that the tariff case will be the first really important one involving presidential power to get a Supreme Court decision on its merits. The fascinating thing here is that Trump’s opponent is not some sort of squishy liberal icon; it is the conservative legal establishment representing small business groups. This will be a battle between two wings of the GOP with different views about the executive branch and economics. Call it Trump v. Reagan.
Will the Court, as usual, appease Trump, or will it side with the traditionalists? My guess is that the Chief Justice, who desperately wants to avoid a confrontation with Trump unless he absolutely has no alternative, will decide that this is the wrong place to take a stand. There is little doubt that American liberal democracy will survive the imposition of tariffs by the president, as opposed to, say, the military occupation of New York, so why draw the line here?