>> new national security concerns of the popular apps tick-tock. chuck schumer and tom cotton are calling on us intelligence officials to look into the chinese owned apps data collection practices. they are concerned about whether the apps follows chinese censorship rules which could limit what americans see. restore all user data in the united states and none of our data is subject to chinese law. >> washington nationals bringing their lead in the world series to their home. the series shifting to the nation's capital. >> so has "fox and friends" cohost jillian who joined us at nationals park where preparations are underway for tonight's game.