Political violence is becoming a more regular issue for the nation’s leaders and society to deal with. Lawmakers on both sides of the aisle have been targeted just over the last few months in

Threats and violent acts have become part of the political landscape, still shocking but somehow not so surprising.

The shootings of two Minnesota lawmakers and their spouses over the weekend highlights the rise in political violence that's been seen in the U.S. over the past five years. CBS News congressional correspondent Nikole Killion reports.