Who was James G. Blaine, was he robbed of the presidency in those conventions?

From 1869 until 1892 he was leading the Half-Breed wing of the Republican Party, they believed in moderate policies and appointing people by merit, rather than by party loyalty. He resigned as Secretary of State after Garfield’s assassination since the new president, Chester A. Arthur, was a member of the Stalwarts, a conservative faction of the Republican Party that believed in political machines and the spoils system. He didn’t hold office again until President Benjamin Harrison made Blaine his Secretary of State in 1889. At that time he had poor health but stayed on until 1892. He died the next year. Blaine did not run for president until 1876, since Lincoln and Grant dominated the Republican Party during Blaine’s early career. Blaine was the frontrunner in 1876, and one of two leading candidates in 1880, the other was former President Grant, but the party was so divided between Half-Breeds and Stalwarts that a compromise choice had to be made. Rutherford B. Hayes and James A. Garfield, who were unknown at the time, and may have gone either way, but they both chose the Half-Breeds, selected at these conventions. In 1884, Blaine defeated incumbent president Chester A. Arthur for the nomination, but he lost against Democratic nominee Grover Cleveland in a close general election. After this defeat, he declined to run for president in the future.

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i really really really really really really dont know