How much power do corporate donors and lobbyists have over politicians?

[Hardkill]

Big corporate donors and other kind of major lobbyists have such a major influence over politicians when it comes to them pushing for all kinds of right-wing legislation such as bigger tax cuts (for the wealthy) and small government (aka BIG corporate sector) with fewer regulations on the powers of big business. So, does mean that these dominating lobbyists and donors actually make politicians like the President and members of Congress make almost any law they want come to fruition? Also, do they have the power to influence politicians to repeal major laws?