First, it is important to recognize that the Electoral College process leads candidates to ignore a majority of states across the country. Just as in 2016, most states in 2020 were not targeted by the presidential campaigns for their votes. This includes heavily populated states such as California and New York, but also less populated states like Montana, the Dakotas and Wyoming.
While most often this effect goes unnoticed, it can have especially significant consequences under some conditions.
A second potential problem could be found in the role of third-party spoilers. It is conceivable that third parties or independent candidates could have strong showings in a few highly conservative or liberal congressional districts and ultimately claim a few electoral votes. This could matter at the margins, denying any candidate a majority of Electoral College votes.
It is unlikely that a move to the district method throughout the states would lead to more fairly distributed nationwide campaigns, nor would they necessarily lead to more representative campaigns. Instead, we would likely see an even greater degree of politicization of the redistricting process, which would result in a system where candidates compete for a limited number of swing districts instead of swing states.
If Democrats continue to make inroads in states such as Texas and Georgia, we can expect the Republican-controlled state legislatures in those states will likely consider plans to change how they award their electoral votes from the winner-take-all system to the district system. Regardless of what unfolds in the 2020 election, the Electoral College will continue to be a source of controversy for the foreseeable future.