Much is made of the campaign process that goes into winning an Oscar -- actors forced to endure months of promotional engagements and interviews to drum up the support needed to secure a win from Academy of Motion Picture Arts and Sciences voters. Well, the Primetime Emmy Awards, which will be broadcast Sept. 20 on NBC to honor the year's best in television, may not have the same reputation, but that has not stopped Emmy winner Jon Cryer from starting a Twitter campaign to get another Jon, Jon Hamm, a win for the final season of the AMC series "Mad Men."

Cryer took to Twitter Tuesday to start a grassroots campaign to put pressure on Emmy voters -- members (including actors) of the Academy of Television Arts & Sciences -- to choose Hamm as outstanding lead actor in a drama series at the 67th annual Primetime Emmys. Cryer, a public admirer of "Mad Men," the critically acclaimed show Hamm has starred in for seven seasons, expressed his disbelief that Hamm had not previously won for the role and urged Emmy voters to take notice. 

Unlike Cryer, who won two Emmys (2009, 2012) for his work in the CBS comedy "Two and a Half Men," Hamm has never won an Emmy despite having been nominated 12 times (including in 2015) for his role in "Mad Men," as well as guest spots on "30 Rock" and "Unbreakable Kimmy Schmidt." Hamm has been nominated eight times in the lead actor in a drama series category -- every year since "Mad Men" premiered in 2007. He is the most-nominated actor in the category to have never won; Hamm holds that unfortunate distinction despite "Mad Men" having won the outstanding drama series award four times going into the 2015 Emmys. 

Hamm is now free of the shadow of Bryan Cranston, who won four of the last seven years for his performance as Walter White in "Breaking Bad." However, two of the actors who won the award over Hamm the other three years are still in the mix. Kyle Chandler, who won in 2011 for "Friday Night Lights," is nominated in 2015 for "Bloodline," and Jeff Daniels, who won in 2013, is again nominated for "The Newsroom." Hamm also must contend this year with Bob Odenkirk for "Better Call Saul," Liev Schreiber for "Ray Donovan" and Kevin Spacey for "House of Cards." 

Hamm will be hoping that this year's Emmys will be a send-off party for "Mad Men," as 2014's ceremony was for "Breaking Bad" -- that series won in three of the four drama acting categories as well as for outstanding drama series. 

Watch Bryan Cranston win the Emmy for "Breaking Bad" in 2014 below:

Will 2015 be Jon Hamm's year? Only time will tell. The 67th annual Primetime Emmy Awards airs Sept. 20 on NBC.