expense growth in 2020 now, at juft the same time as facebook reported its earnings twitter ceo jack doorsy tweeted the announcement that twitter will stop taking all political and issue adds he tweeted quota political message earns reach when people decide to follow an account retweet. paying removes that decision we believe this decision should not be compromised by money. now this move by twitter stands in contrast to facebook's policy to not face check or remove political ads drawing criticism. facebook ceo mark zuckerberg argued that facebook should not limit free speech. we'll have to see if zuckerberg weighs on the latest move on phone number's earnings call now getting under way. melissa. >> julia, is a political ad considered asset one that endorse as candidate or paid for by a candidate. >> that's one subset there were the political ads purchased by candidates for candidates and then there are issue adz this could be something an ad for gun control or against against gun control. a hot button political issue like abortion. this is something both facebook and twirpt twurt have made