5 Presidential primaries take place tomorrow: Connecticut, Delaware Maryland, Pennsylvania, Rhode Island.
The 4/1-6 Muhlenburg College/Allentown Morning Call poll looks like an outlier to me.
Source: Real Clear Politics
Clinton and Sanders do the Tighten Up in California. (4/22/2016)
Cruz rides the slide in California. (4/22/2016)
Clinton maintains lead over Sanders in Pennsylvania primary polls. (4/21/2016)
Trump, Cruz, Kasich listen to their engines idle in Pennsylvania. (4/21/2016)
Preview of Maryland presidential primary races. (4/20/2016)
Latest California primary polls give front runners a bump. (4/17/2016)
Donald Trump's Joe Paterno meltdown moment in Pittsburgh. (4/14/2016)
Presidential primary focus moves East: A look at latest polls from NY and PA. (4/7/2016)
Trump continues to hold onto a slim lead in GOP California primary polls. (4/5/2016)
Latest GOP Pennsylvania primary poll shows tight race between Trump and Kasich. (3/24/2016)