Topic: nullification

(Getty Images)

U.S.'s 2nd Amendment Sanctuaries

Travis Dunn - WhoWhatWhy
(AP/Alonzo Adams/Reuters/Steve Nesius/<a href='http://www.shutterstock.com/gallery-138841p1.html'>WDG Photo</a> via <a href='http://www.shutterstock.com/'>Shutterstock</a>/Photo montage by Salon)

The ugly war on gay rights

Simon Maloy
Joni Ernst (AP/Charlie Neibergall)

Joni Ernst's extremist history

Simon Maloy
Joni Ernst (AP/Charlie Neibergall)

Joni Ernst Exposed

Luke Brinker
Joni Ernst (AP/Charlie Neibergall)

Is Ernst the Akin of 2014?

Joan Walsh
Ron Paul (AP/Robert F. Bukaty)

Paul touts nullification

Elias Isquith
(<a href='http://www.shutterstock.com/gallery-658339p1.html'>Vadim Georgiev</a> via <a href='http://www.shutterstock.com/'>Shutterstock</a>)

Jillian Rayfield
Gun rights supporters stand outside the Capitol Sat, Jan. 19, 2013 in Phoenix during a Guns Across America rally. (AP/Matt York)

Can states nullify gun laws?

Lois Beckett - ProPublica