If you look at the Area51 stats you see that some graduated StackExchanges had similar numbers of questions per day at the end of their beta as Politics has currently. Example
So, from the stats on Area51 it seems to be at least possible to graduate right away. However, the final decision is taken by the StackExchange management and that's why one would have to ask them about that steps can possibly be taken.
I propose to forward this question to the StackExchange management - the feedback may prove fruitful.
What worries me most about the site is the amount of emotion involved. It's natural for such a topic but I feel like the Q&A thing of the StackExchanges just may not work well enough here. There is a large amount of negatively scoring content.
Maybe the community could discuss how to refine the scope so that controversial questions are better excluded or increase the standards like even more requiring questions to be written neutral, so that this StackExchange can be a source of high quality information about political processes instead of just another political discussion forum. This could maybe be an ongoing process.
I agree that a higher number of (interesting) questions per day may be helpful, but short of writing them ourselves and improving the quality of existing content there is not much that can be done there really.