John McCain actually said...

Weakness is not something that we should show, because people like Mr. Putin will draw the wrong conclusions.

Vladimir Putin's invasion of Ukraine and annexation of Crimea forced a recognition... that we're confronting a challenge...

Failure to offer greater support to Ukraine... would send a message of weakness that would invite the very aggression we seek to avoid.

As the old saying goes, Mr. Putin's appetite is growing with the eating.