People are conflating lobbying with political donations. Lobbying is talking to politicians to attempt to convince them of something. Lobbyists aren't allowed

People are conflating lobbying with political donations. Lobbying is talking to politicians to attempt to convince them of something. Lobbyists aren't allowed to give money or gifts to a politician beyond some small limit (exact rules vary by state). For example, in California, a lobbyist can pay up to $10 of the politician's meal and the politician has to pay the rest. A company can both make political donations and hire lobbyists. But when you see that X company spent $2 million on lobbying, that's not money going to a politician or their campaign. You need to look at the political donations.