Trump could ultimately decide not to create a special envoy for the conflict in Ukraine, although he is strongly considering doing so, the sources said. If he does, he could ultimately select someone else for the role, and there is no guarantee Grenell would accept.
Trump vowed on the campaign trail to swiftly end the conflict, although he has not said how he will do it.
Some of Grenell's stances could give Ukraine's leaders pause.
During a Bloomberg roundtable in July, he advocated for the creation of "autonomous zones" as a means of settling the conflict, which began after Russia invaded Ukrainian sovereign territory. He also suggested he would not be in favor of Ukraine joining the North Atlantic Treaty Organization in the immediate future, a position he shares with many Trump allies.
Grenell's supporters note he has had a long diplomatic career and has a deep knowledge of European affairs. In addition to serving as ambassador to Germany, Grenell was also a special presidential envoy for Serbia and Kosovo peace negotiations.