The enemies list: Trump takes a page from Nixon's playbook

Sen. Lisa Murkowski , R- Alaska , is one of few Republican senators to have publicly opposed President Trump .

Murkowski : "We are in a time and a place where I have not been before. I am oftentimes very anxious myself about using my voice because retaliation is real — and that's not right" Trump isn't the first modern president to assemble list of political enemies to be targeted for revenge.

In the first 100 days of his administration, Trump has wasted no time taking action against his perceived enemies.

He has drastically cut budgets and fired at least 121,000 workers across 30 federal agencies.

Karl Rove , Karl Rove : Most of the president's revenge attempts will end badly for him.