I think politics is a red herring. Issues of trust don't rest in political opinions, unless you choose to place them there. And even if you knew party affiliation, it wouldn't prove anything. Not all politicians of a party agree with 100% of a party platform in any country. And certainly all voters do not agree with 100% of any politician's views. To reduce politics to such simple distinctions is misleading; to make value judgements on the basis of such distinctions is also misleading.

Why not just ask her the values questions you really want answers to, if you must, rather than hide concerns in political alignments?