According to the information in the article,

though Donald Trump has been accused of many kinds of objectionable and even scandalous behavior, he probably is not in danger of being impeached.

the political enemies of Donald Trump are currently planning to use his scandalous personal behavior and his criminal business deals with the Russians as the basis for impeachment proceedings.

despite exhibiting objectionable and even criminal behavior before the U.S. presidential election, Donald Trump can be impeached only for crimes he may have committed while serving as president

the clearly vindictive, political motives of Donald Trump’s opponents will invalidate any attempt to impeach him.

no matter what crimes that he may commit, as long as Donald Trump is able to maintain his high approval ratings, he will never be impeached.