Donald Trump suggested he would do more to protect the country from Russia, seeking to flip the script on the president, who has been calling for more military aid for months.
Senator Chuck Schumer was wary of tying immigration policy to emergency aid for Ukraine, but he saw an opening to address border turmoil that was becoming a political liability — and to call Republicans’ bluff.
Outraged by Donald J. Trump’s remarks about encouraging Russia to punish some NATO members, and downbeat about Ukraine’s military prospects, Europe faces growing anxiety over its own security.