Axios

Republican Ken Paxton's 28-point primary rout of longtime Texas Sen. John Cornyn — the widest primary defeat for a sitting U.S. senator in nearly 50 years — further cements President Trump's hold on the GOP — but may complicate the party's ability to protect its Senate majority in November.

Why it matters: As election returns rolled in late Tuesday, top Republicans stewed over Trump's endorsement of Paxton — Texas' attorney general with a long history of legal and ethical troubles who they believe could be more vulnerable in November.

Microsoft, Google, Amazon and Meta are teaming up with a nonprofit investor to accelerate new technologies using data centers as test cases.

Why it matters: The initiative, led by Elemental Impact, is among the clearest attempts yet to turn the massive buildout of AI infrastructure into a proving ground for new technologies rather than just a new source of emissions.

AI's most powerful CEOs are splitting into warring camps over whether their own technology will gut white-collar work or supercharge it — but the truth probably lies somewhere in the middle.

Why it matters: The two leading AI labs are trading in hype and doom, making it nearly impossible for companies, policymakers and the public to know what's coming.