2008 Mercury Grand Marqui. A/C on at a stop the idle nearly dies.

What is your question?

When I am stopped at a red light or stop sign. Or even just in park at my home. With the A/C on my idle nearly dies. When I shut the A/C off. The car idles okay. Any suggestions would be welcome. Thank you, Darrell Carr Lake City, Fl

How long has your 2008 Mercury Grand Marquis had this problem?

about 1 month