France--and many other countries in Europe--have "day of reflection" laws, which prohibit any political campaign activity on the day before an election. They also mandate media blackouts for anything political on the day before an election. Plus, as you may or may not recall from the first round, media outlets can't report on any election day events--turnout, exit polls, and so on--until after the polls close.
Lets hope we are popping a bottle of Veuve in honor of Le Pens victory.
Viva France and may she always remain  free.