Politics and political issues are always colored by biases on either side of the issue. First of all, you must define the issue. Then, you have to be informed through research. You have access to a variety of news information. There is television, radio, newspaper, and the Internet.
Two of my favorite ways of staying informed are the various news websites, and Congress.org which tells us exactly how the various representatives have voted on a particular bill or issue. It doesn't really matter too much what the poiticians say in their speeches. What really matters is the voting record.
Another way to stay informed about politicians and which way they may be leaning is to find out who funds their campaigns. I call this strategy "follow the money". Many politicians owe their contributors favors. One of the most famous political contributors was J.P. Morgan who contributed to the campaign of Theodore Roosevelt. He made the statement, "We bought him, but he wouldn't stay bought." about the president and his progressive policies.