This commentary originally appeared on The Hill.
Hillary Clinton shouldn't start preparing her inaugural address just yet.
There are plenty of things that could trip up her campaign between now and Election Day, even if polls increasingly suggest she is on track to beat Donald Trump in a landslide.
Clinton has a significant advantage in recent polls both nationally and across battleground states. New polls from NBC News/Wall Street Journal/Marist on Friday put her in a dominant position in states that would be close in a normal election year. In Virginia and Colorado, for instance, Clinton led by 13 and 14 points, respectively.
But those polls came after a brutal stretch for Trump, and the race could tighten significantly heading into the fall.
Still, given the electoral map, Trump probably needs some larger development to change the trajectory of the race. Here are five scenarios that could improve Trump's chances.