Agitate

"The citizen who thinks he sees that the commonwealth's political clothes are worn out, and yet holds his peace and does not agitate for a new suit, is disloyal, he is a traitor. That he may be the only one who thinks he sees this decay, does not excuse him: it is his duty to agitate anyway, and it is the duty of others to vote him down if they do not see the matter as he does."

-Mark Twain,

"A Connecticut Yankee in King Arthur's Court" (1889)