First: No. It's not too early to discuss the 2020 election. The Iowa caucuses are only a year and a half away. Any presidential hopeful who hasn't begun chatting up donors by now will find it nearly impossible to mount a viable campaign.
At this point insert the usual caveats that anything can happen, no knows anything, scandals happen, politicians get sick, a year is an eternity in politics.
Let's speculate!
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