Billionaire investor Ken Griffin intensified his criticism of Zohran Mamdani, saying New York is becoming less welcoming to businesses and wealthy investors as tensions grow over the mayor's proposed tax policies.

Tax Day isn’t normally a cause for celebration. The annual due date for filing taxes usually comes with headache-inducing financial stress and mountains of difficult-to-decipher paperwork. But this year, Tax Day apparently came with an unexpected upside ...