President Trump thought Ukraine's surprise drone attack over the weekend was "strong" and "badass," sources who discussed it with him tell Axios, but he's also concerned it will make his ceasefire mission even harder. The meticulously planned operation on Russia's most strategic air bases " conducted remotely from thousands of miles away " suggested Ukraine has more "cards" than Trump gave them credit for, but also effectively dared Russian President Vladimir Putin to escalate in return. He thought it was badass," a second source said of Trump's reaction. One Trump adviser said: "From an international perspective, you've got a chihuahua inflicting some real damage on a much bigger dog."