Earlier quoted context omitted.
Except Trump probably supports the CLOUD Act.
The Administration has backed the push for it (in part, to resolve an ongoing legal dispute with Microsoft, who also supports it), so it's pretty hard (though given Trump's other rapid reversals, not impossible) to see Trump causing a shutdown by vetoing the omnibus spending bill over it's inclusion.
https://www.salon.com/2018/03/22/another-terrible-privacy-la...
http://dailycaller.com/2018/03/22/supreme-court-emails-store...
Although neither source the support claim.