from /u/ImPinkSnail
To bring everyone into the loop in TL;DR style:
Prologue: Cliven Bundy is a rancher from Nevada that was involved in an armed standoff with the federal government. There was a long standing fight about the Bureau of Land Management (BLM) denying ranchers what they, the ranchers, thought was their right to let their cattle graze on government land. Many ranchers called this a major overreach by the feds and it gathered support of many conservatives across the country. Some went so far as to show up armed and prepared to fight the federal government. The federal government did get a court order to impound the cattle, however, the BLM decided to not enforce the order: "Based on information about conditions on the ground, and in consultation with law enforcement, we have made a decision to conclude the cattle gather because of our serious concern about the safety of employees and members of the public."
More detailed story is here: https://www.washingtonpost.com/news/the-fix/wp/2014/04/15/everything-you-need-to-know-about-the-long-fight-between-cliven-bundy-and-the-federal-government/ and here https://en.wikipedia.org/wiki/Bundy_standoff
Chapter 1: The Arsonists
Some ranchers made a fire that spread to BLM land. They also set a fire to destroy evidence of deer poaching. The federal government charged them with arson and managed to get a conviction. They were sentenced and served the sentenced issued initially. However, the sentence was lengthened and were forced to go back. Bundy calls on his army from his protest to show up and help protest these ranchers going to jail.
More detailed story here: http://www.oregonlive.com/pacific-northwest-news/index.ssf/2015/12/ranchers_fight_with_feds_spark.html
Chapter 2: Bundy's Back!
Bundy gathered some of these protesters to take over a wildlife refuge in Oregon. They have said they plan on living there for years and have called on other conservatives to join them to fight. Someone who joined them has sent a "goodbye video" to his family. One has said "I want to die a free man." Rumor has it that there are over 100 armed fighters and they have stockpiled supplies to survive.
Chapter 3: Bundy Speaks
Bundy has posted a video to their Facebook page and outlined that they are protesting the federal government putting the people in poverty by regulating the natural resources they need for their businesses. They also said that if they do not stand up now they might not be able to in the future. Bundy also stated he did not want to cause anyone harm and confirmed that they are armed.
If you want to see the video it is on the Bundy Ranch facebook page.