(CNN) Fox News is apparently allowing host Sean Hannity to appear as a "special guest" at President Donald Trump's final rally of the midterm season.

Hannity's involvement was promoted in a Trump campaign press release on Sunday afternoon. Rush Limbaugh will also be there, the campaign said, promising "special guest appearances" by both men at the rally in Cape Girardeau, Missouri.

Monday's rally plan reaffirms how the Trump White House and parts of the conservative media ecosystem have effectively merged . Many Trump fans have cheered this development, but it opens up Hannity and Limbaugh to criticism. After all, MSNBC's Rachel Maddow was never a "special guest" at a Barack Obama speech. Fox's Bill O'Reilly was never a "special guest" at a George W. Bush event.

So it's quite a sight to see a Trump press release promoting TV and radio stars as his "special guests."

Hannity is not a journalist, but he works at a hugely popular network with "News" in its name, alongside staffers who have to follow policies that forbid this type of political involvement.

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