CNN will crow that 18 million people watched last night's GOP debate, but that number is down 6 million viewers from the last time. 

In September, the GOP debate drew 24 million people on CNN. Last night's viewership dropped 6 million. 

The numbers are still impressive when compared to debates from previous years, but it also appears that a number of people are growing tired of Donald Trump's act. 

CNN will milk last night's debate for the rest of the week and will their non-stop Trump coverage, but at least 6 million people have grown tired of it.