Senate Minority Leader Mitch McConnell is dispatching one of his top lieutenants to the National Republican Senatorial Committee to help Chairman John Cornyn’s efforts to win control of the chamber on Nov. 2.

Senate Republican Communication Center Staff Director Josh Holmes will take a leave from the Kentucky Republican’s staff to join the NRSC this week. He will work to develop messaging strategies heading into the midterms, according to Senate GOP aides.

McConnell’s decision is part of his “full commitment to providing all the resources possible for Republican Senate candidates this fall,” McConnell spokesman Don Stewart said, adding that “with the NRSC successfully presiding over a rapidly expanding field of competitive races, Sens. McConnell and Cornyn want to ensure that all hands are on deck for the final general election push.”

Holmes, whose last day in McConnell’s Senate office is Tuesday, brings a decade of campaign experience to the NRSC, including stints with the Republican National Committee and McConnell’s 2008 re-election race.

Holmes has been a key communications strategist for McConnell over the past two years, and helped the Republicans develop a counter to the “war room” communications operation of Majority Leader Harry Reid (D-Nev.).

According to GOP aides, McConnell’s short-term loan of Holmes to the NRSC is part a broader effort to help Republicans succeed this fall. One aide noted that McConnell has given the NRSC more than $2.6 million this cycle, and has participated in more than 200 fundraising events for individual candidates over the past 22 months.