Legal Permanent Residency: Married but Out of Status - Gc App Now, Divorce Later

Thank you in advance for reading and all advice given! Will seek lawyer for case later.

Situation:
-Brazilian woman married April 2016 in Texas to US man.
-Did not apply for green card immediately.
-Status as B2 lapsed in December 2016.
-No longer loves US man and wants eventual divorce.
-Wants to stay in US.
-Woman, and consenting man, considering applying for green card in April 2017.
-Woman wants to marry another US man she has legitimately met.

Questions:
-What has changed for her situation under Trump?
-Will her green card application now get her deported?
-Will her green card application have the chance to be approved?
-How will divorce affect a 2 year green card?
-How long after the approved temporary green card is issued can she divorce?
-Is it safer for her to divorce out of status and remarry and immediately apply for green card?

Legal Permanent Residency: Married but Out of Status - Gc App Now, Divorce Later