Pennsylvania Democrats have registered in record numbers for the state's April 22 primary following a late surge to Monday's deadline. The last minute rush put the total number over 4 million, a 4 percent bump over both 2006 and 2004 at this point in the cycle. GOP registration declined slightly over the last 2 cycles.

Over 120,000 Democrats have registered for the first time since Jan. 1. An additional 86,000 switched their party affiliation from either Independent or Republican.

At first look, a break down by county shows the bump spans accross the state to areas of strength for both Sens. Barack ObamaBarack Hussein ObamaThe Hill's 12:30 Report — Trump questions Kavanaugh accuser's account | Accuser may testify Thursday | Midterm blame game begins Dems look to Gillum, Abrams for pathway to victory in tough states Ford taps Obama, Clinton alum to navigate Senate hearing MORE (D-Ill.) and Hillary ClintonHillary Diane Rodham ClintonPompeo: 'We've not been successful' in changing US-Russia relations Michael Moore ties Obama to Trump's win in Michigan in 2016 The Memo: Could Kavanaugh furor spark another ‘year of the woman’? MORE (D-N.Y.).

Recent polls show Clinton's lead over Obama anywhere from 12 to 26 points.