The following script, given someone's last name, prints a CSV of financial disclosure PDFs (the first 20, for simplicity's sake) as found on the House Financial Disclosure Reports. It's meant to be a proof-of-concept of how to scrape ASPX (and other "stateful" websites) with using plain old requests -- without too much inconvenience -- rather than resorting to something heavy like the selenium websdriver
The search page can be found here: http://clerk.house.gov/public_disc/financial-search.aspx
Here's a screenshot of what it does when you search via web browser: