The whole modern world has divided itself into Conservatives and Progressives. The business of Progressives is to go on making mistakes. The business of Conservatives is to prevent mistakes from being corrected.
It's also lamentable that US taxpayer dollars are being used to fund/subsidize Russian opposition groups in the Ukraine, another thing you won't hear rush or the mainstream media talk about.
Putin's actions were wrong--he should have pursued a diplomatic sol'n that took into account the will of the Ukrainian people as well as those in Crimea before deciding to use force, but Putin has demonstrated a pattern of always preferring to use force.
But the key issue here is that the story isn't as one-sided as the fauxnews commentators and rush, hannity, etc. want to portray--Russia is not invading a region because it's just a mean 'ol country that likes to take advantage of people; rather, their invasion has largely been welcomed by Crimeans. That wouldn't be such a big deal, except for the fact that those aforementioned media personalities/outlets are the only source from which conservatives get their world view.