In this piece, Gary Younge lays out the dual need to fight to defeat Trump and to prepare to challenge Hillary.
Even as one votes for Clinton—if she’s the nominee, then no one else is going to be able to stop Trump from taking power—one must prepare to organize against her. If she wins, her agenda will make an eventual victory for someone like Trump more likely, not less. More than a decade after Le Pen’s defeat, his daughter, who now heads the National Front, could yet reach the runoffs again. Hofer’s Freedom Party came in second place in the parliamentary elections in 1999 and was in a coalition government. Elections alone cannot defeat the populist right; we have to drain the swamp from which they gather their bait. When your house is ablaze, you grab whatever’s handy and put it out. But when the flames are quenched, the laborious task of fireproofing is in order.
You can read the whoel article here: https://www.thenation.com/article/how-to-fight-a-fascist-and-win/