point person

She initially was handed the unofficial role of administration point person on illegal immigration and botched it.

My sister acted as our day-of point person.

Her point person was Osborn, a former FBI agent, but the two were increasingly at odds.

After cleaning up the mess created by the spike in fatalities, he was also the point person on the renovation and eventual selling, for $1, of Pimlico Race Course in Baltimore.

The vice-president has also been the administration’s point person on abortion, which has proven to be one of the most potent issues for motivating the Democratic base in recent elections.