On the campaign trail, Donald Trump was unapologetic about putting America first. He promised to secure the nation’s borders, strengthen the domestic workforce and be tough on countries he thought were taking advantage of the United States.Now, 10 months into his second term, the president is facing backlash from some conservatives who say he is too focused on matters abroad, whether it’s seeking regime change in Venezuela, brokering peace deals in Ukraine and Gaza or extending a $20-billion currency swap for Argentina. The criticism has grown in recent days after Trump expressed support for granting more visas to foreign students...