Rymasheuski has been a member of the coordination council of the Belarusian Association of Young Politicians since 1996. From 2002 to 2004, he was a member of the presidium of the Belarusian National Council of Youth.
Alaksandar Milinkievič's presidential campaign in the
Frunzyenski District was managed by Rymasheuski during the
2006 election. Rymasheuski was a member of the
Young Front and
United Civic Party. He founded Movement for Freedom. He was a founding member and is the co-chair of
Belarusian Christian Democracy (BCD). BCD nominated Rymasheuski as its presidential candidate for the
2010 election. He is the co-chair of the BCD. He was beaten and arrested after protesting in
Independence Square, Minsk on 19 December 2010. He was convicted for organising actions that grossly violate public order on 30 March 2011, and given a two year suspended sentence on 20 May. U.S. President
Barack Obama condemned the sentence given out to Rymasheuski and other opposition leaders. Rymasheuski was abducted by a group of four men on 19 December 2011. Rymasheuski called for a boycott of the
2012 election. ==Personal life==