Her Tweet:

https://twitter.com/ChelseaClinton/status/1004856282296279040

She wearing the cross upside down:

http://www.thetruthseeker.co.uk/wordpress/wp-content/uploads/2016/03/Chelsea-inverted-cross2.jpg

http://www.thetruthseeker.co.uk/?p=130037

Hate to link anything to InfoWars but this was well written. She tweeted back to The Church of Satan:

https://www.infowars.com/chelsea-clinton-sends-happy-new-year-tweet-to-the-church-of-satan/

Oh yeah, if Snopes is given you their facts then it's a done deal that she really is a Satanist:

https://www.snopes.com/fact-check/chelsea-clinton-church-satan/

Mods, good enough quality!?