Many have expressed concern over what has been called a worry that politicians, especially presidents, spend too much time working toward reelection and not enough time governing.

The answer is "permanent campaigning".

The expression “permanent campaign” is generally new to our political discourse. The permanent campaign commonly alludes to the thought that the line amongst campaigning and representing has turned out to be progressively obscured. 

which of the following is a subsurface event that takes place during the rock cycle?

  cementing  erosion  melting  weathering