US politicians often make the news for their stock trading. Their moves aren’t just scrutinized but have also resulted in the creation of instruments like ETFs that track their trades. While some trades raise suspicion, others are simply a reflection of good investment strategies. Finding out which is which is often the tricky part. Take Nancy Pelosi for instance. Her trades are often to the tune of millions of dollars. They not only generate headlines but also influence stock price movements to an extent. The Republican Representative Michael McCaul is another, who takes months to initiate la…