[D] Day, Patriots.
Anons, that comma could indicate order, as in: Patriots Day.
Patriots' Day = 3rd Monday in April = 4-15-2019
https://en.wikipedia.org/wiki/Patriots%27_Day
Since we know Election Fraud and Arrests will occur in 2019, it's logical to think taking back the Country will occur after those events.
Also, Patriots Day is a movie about a terrorist.
Patriots Day (Movie 2016)
"The story of the 2013 Boston Marathon bombing and the aftermath, which includes the city-wide manhunt to find the terrorists responsible."
https://www.imdb.com/title/tt4572514/
This decode does not account for [D].