Persuasive speeches are usually aimed to convince the audience to accept the speaker's point of view. <em>(whether right or wrong)</em>. Judging by that, the speech in question has already passed as a persuasive speech since it is aimed at persuading an audience.
Similarly, the content of the persuasive speech has a lot to do with the adoption of a <em>new tax policy </em>by the government<em>. </em>Hence, this makes this makes the speech a persuasive speech on a question of policy.