The Norwegian present tense covers both the simple present and the present continuous in English, so it could be either "support/supports" or "is/are supporting".
"Du" is the subject pronoun, while "deg" is the object pronoun.
"You" as a subject: "Du støtter X".
"You" as an object: "X støtter deg".
Tussen takk. I was slightly confused. Im javing trouble with du, deg, og dere
if you don't understand du/deg, consider thou/thee. English does it with he/him, etc., but you remains the same in subject/object cases: you are here/I see you. c.f. they are here/we see them