Beyoncé throws support behind Harris, urges Americans to write 'song of unity' in November
Trump meets with leaders from Bezos-owned Blue Origin
Watch live: Harris expected to rally with Beyonce in Houston
NASA chief calls for reported Musk-Putin talks to be investigated
Inside Taiwan's preparations for a potential Chinese attack
Watch live: Trump woos voters in 'blue wall' Michigan
Online gambling rise poses significant public health threat: Commission
Elections test US power in Putin's backyard
