To get elected Politicians need both money to campaign and, ultimately, votes. Massaging the tax code is a favored way of getting both money and votes. Offering tax credits to an industry gets you money from lobbyists to fund your campaign. Providing tax credits related to mortgages, childcare, or education to the voting public buys you votes.
Just like technological advances can propel or retard an industry, the entrepreneur needs to keep a watchful eye on political leanings to make the most of current or emerging tax policies.
