Marcus Leonardus 'Mark' Verheijen is a Dutch politician of the People's Party for Freedom and Democracy (Volkspartij voor Vrijheid en Democratie). He was Vice Chairman of that party from 2008 till 2012 and interim Chairman from 4 August 2010 to 20 May 2011.— Wikipedia
The time period for further statistics is the same as in the graph above. Retweets are included. For the word cloud, the most common words in a language and numbers were eliminated, and words were converted to lowercase.