Obama basically created the modern drone war, with his heavy investment in drone killings in all of the middle east. He is also the first US president to openly admit to ordering the assassination of a US citizen without trial.
Of course, not everything he did was bad. He did have better intentions on combating climate change than president before or after him, for example.
Of course, not everything he did was bad. He did have better intentions on combating climate change than president before or after him, for example.