President Donald Trump was telling a Rose Garden audience about his efforts to quell violence in the nation's capital when, as if on cue, his words were drowned out by the wail of sirens from passing vehicles.
Investors are pouring hundreds of billions of dollars into artificial intelligence ventures, raising fears that stock prices won't match profits and lead to a bursting bubble that sends shockwaves through the economy.
President Trump officially presented plans for a triumphal arch in honor of America's 250th birthday next year while he thanked donors on Wednesday for helping his dream of a White House ballroom become a reality.