“With Republican Trump in the White House, Obama can run again in 2020. “
Written by someone who is either an idiot or pretending to be one.
Where in the Constitution is there any reference to "being nominated", or to "running for President"?
Of course he can "run for President", which has no Constitutional existence whatsoever.
What he can't do is be ELECTED President again.
Whether this Amendment limits the Electoral College is unclear.