Sen. Richard Blumenthal says by bombing Crimea behind the Russian lines, Ukraine is showing the world it can push back and ultimately expel its invaders.

Blumenthal said he is calling on his colleagues in Congress to put aside party politics and come together to help Ukraine.

"Pummeling those Russian bases on the Crimea, which Ukraine is doing right now, requires longer-range artillery. The fact is I am pushing the administration. I will be doing it this week because we're at a turning point. Ukraine is clearly showing it can breach the Russian defenses. It has done so in the south at a number of points, but it needs those longer-range artillery to continue pummeling and pushing the Russians behind the lines," Blumenthal said.