The Practical Politicking Report (PPR) is an election rating system designed and developed by Tom Dougherty over a four-year period. Unlike many other ratings it is purely mathematical without regard to anecdotal influences like early-cycle polling.
The PPR scores can lag other ratings like The Cook Political Report, Sabato’s Crystal Ball and The Rothenberg Political Report, and by their nature can shift substantially every quarter after all candidates have filed their FEC financial disclosure reports.
While the algorithms are proprietary, the PPR takes into account numerous variables including district and state demographics; party affiliation variants relative to national averages; party affiliation voting patterns from the last two presidential elections; total money raised and cash-on-hand that is weighted in value depending on the analysis date relative to where it lies within the current election cycle; and current voter registrations from each district and state.
For the last two congressional election cycles (2010 and 2012) the PPR was over 95% accurate; and past election testing against the 2006 and 2008 cycles were also 95% plus accurate. However past performance does not guarantee future accuracy.
The PPR is updated every day but the larger rating changes will generally occur in the early parts of February, May, August and November. Please email questions to Tom Dougherty for more information.