Support for AOC

To my complete surprise, I find myself in agreement with Alexandria Ocasio-Cortez.  She has proposed that elected representatives should be barred from becoming lobbyists upon 'retiring' from Congress.  This practice is similar to insider trading.  The problem isn't just elected representatives.  How many regulators leave the various government agencies to then turn around and lobby their former colleagues on behalf of the industry being regulated?  Ted Cruz offered support, suggesting a lifetime ban on former members becoming lobbyists.  Though I like the goal, I suspect courts would strike down such a law.  Are there other professions from which people can be banned except in the case of conviction of a crime?  Even so, I hope to see the Ocasio-Cortez-Cruz bill proposed in Congress.  I give it long odds at getting through the House or Senate but Trump would gladly sign it.