I've always advocated gun control; the odd thing is I still do. (Para.2)
Meaning: I've always said in public that I support the idea of gun control and the strange thing is that I am still a gun control supporter now.
advocate:vt. suggest or say that you support a particular plan or action
People running for president often advocate reducing taxes. 競選總統的人往往主張減稅。
They advocated strict control of pollution to protect the environment. 他們主張嚴格控制污染以保護環境。
n. 污染,污染物