diff --git a/packages/stargate/src/modules/gov/messages.spec.ts b/packages/stargate/src/modules/gov/messages.spec.ts
new file mode 100644
index 0000000000..e7165fa929
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+++ b/packages/stargate/src/modules/gov/messages.spec.ts
@@ -0,0 +1,170 @@
+import { coin, coins, makeCosmoshubPath } from "@cosmjs/amino";
+import { DirectSecp256k1HdWallet } from "@cosmjs/proto-signing";
+import { assert, sleep } from "@cosmjs/utils";
+import { TextProposal, VoteOption } from "cosmjs-types/cosmos/gov/v1beta1/gov";
+import { Any } from "cosmjs-types/google/protobuf/any";
+
+import { longify } from "../../queryclient";
+import { SigningStargateClient } from "../../signingstargateclient";
+import { assertIsDeliverTxSuccess } from "../../stargateclient";
+import {
+  defaultSigningClientOptions,
+  faucet,
+  nonNegativeIntegerMatcher,
+  pendingWithoutSimapp,
+  simapp,
+  simappEnabled,
+  validator,
+} from "../../testutils.spec";
+import { MsgDelegateEncodeObject, MsgSubmitProposalEncodeObject, MsgVoteEncodeObject } from "../";
+
+describe("gov messages", () => {
+  const defaultFee = {
+    amount: coins(25000, "ucosm"),
+    gas: "1500000", // 1.5 million
+  };
+  const textProposal = TextProposal.fromPartial({
+    title: "Test Proposal",
+    description: "This proposal proposes to test whether this proposal passes",
+  });
+  const initialDeposit = coins(12300000, "ustake");
+  const delegationVoter1 = coin(424242, "ustake");
+  const delegationVoter2 = coin(777, "ustake");
+  const voter1Address = faucet.address1;
+  const voter2Address = faucet.address2;
+  // Use address 1 and 2 instead of 0 to avoid conflicts with other delegation tests
+  // This must match `voterAddress` above.
+  const voterPaths = [makeCosmoshubPath(1), makeCosmoshubPath(2)];
+  let voterWallet: DirectSecp256k1HdWallet | undefined;
+  let voterWalletAmino: Secp256k1HdWallet | undefined;
+  let proposalId: string | undefined;
+
+  beforeAll(async () => {
+    if (simappEnabled()) {
+      voterWallet = await DirectSecp256k1HdWallet.fromMnemonic(faucet.mnemonic, { hdPaths: voterPaths });
+      voterWalletAmino = await Secp256k1HdWallet.fromMnemonic(faucet.mnemonic, { hdPaths: voterPaths });
+      const client = await SigningStargateClient.connectWithSigner(
+        simapp.tendermintUrl,
+        voterWallet,
+        defaultSigningClientOptions,
+      );
+
+      const proposalMsg: MsgSubmitProposalEncodeObject = {
+        typeUrl: "/cosmos.gov.v1beta1.MsgSubmitProposal",
+        value: {
+          content: Any.fromPartial({
+            typeUrl: "/cosmos.gov.v1beta1.TextProposal",
+            value: Uint8Array.from(TextProposal.encode(textProposal).finish()),
+          }),
+          proposer: voter1Address,
+          initialDeposit: initialDeposit,
+        },
+      };
+      const proposalResult = await client.signAndBroadcast(
+        voter1Address,
+        [proposalMsg],
+        defaultFee,
+        "Test proposal for simd",
+      );
+      assertIsDeliverTxSuccess(proposalResult);
+      const logs = JSON.parse(proposalResult.rawLog || "");
+      proposalId = logs[0].events
+        .find(({ type }: any) => type === "submit_proposal")
+        .attributes.find(({ key }: any) => key === "proposal_id").value;
+      assert(proposalId, "Proposal ID not found in events");
+      assert(proposalId.match(nonNegativeIntegerMatcher));
+
+      // Voter 1
+      {
+        // My vote only counts when I delegate
+        if (!(await client.getDelegation(voter1Address, validator.validatorAddress))) {
+          const msgDelegate: MsgDelegateEncodeObject = {
+            typeUrl: "/cosmos.staking.v1beta1.MsgDelegate",
+            value: {
+              delegatorAddress: voter1Address,
+              validatorAddress: validator.validatorAddress,
+              amount: delegationVoter1,
+            },
+          };
+          const result = await client.signAndBroadcast(voter1Address, [msgDelegate], defaultFee);
+          assertIsDeliverTxSuccess(result);
+        }
+      }
+
+      // Voter 2
+      {
+        // My vote only counts when I delegate
+        if (!(await client.getDelegation(voter2Address, validator.validatorAddress))) {
+          const msgDelegate: MsgDelegateEncodeObject = {
+            typeUrl: "/cosmos.staking.v1beta1.MsgDelegate",
+            value: {
+              delegatorAddress: voter2Address,
+              validatorAddress: validator.validatorAddress,
+              amount: delegationVoter2,
+            },
+          };
+          const result = await client.signAndBroadcast(voter2Address, [msgDelegate], defaultFee);
+          assertIsDeliverTxSuccess(result);
+        }
+
+        const voteMsg: MsgVoteEncodeObject = {
+          typeUrl: "/cosmos.gov.v1beta1.MsgVote",
+          value: {
+            proposalId: longify(proposalId),
+            voter: voter2Address,
+            option: VoteOption.VOTE_OPTION_NO_WITH_VETO,
+          },
+        };
+        const voteResult = await client.signAndBroadcast(voter2Address, [voteMsg], defaultFee);
+        assertIsDeliverTxSuccess(voteResult);
+      }
+
+      await sleep(75); // wait until transactions are indexed
+
+      client.disconnect();
+    }
+  });
+
+  describe("MsgVote", () => {
+    it("works", async () => {
+      pendingWithoutSimapp();
+      assert(voterWallet);
+      assert(proposalId, "Missing proposal ID");
+      const client = await SigningStargateClient.connectWithSigner(simapp.tendermintUrl, voterWallet);
+
+      const voteMsg: MsgVoteEncodeObject = {
+        typeUrl: "/cosmos.gov.v1beta1.MsgVote",
+        value: {
+          proposalId: longify(proposalId),
+          voter: voter1Address,
+          option: VoteOption.VOTE_OPTION_YES,
+        },
+      };
+      const voteResult = await client.signAndBroadcast(voter1Address, [voteMsg], defaultFee);
+      assertIsDeliverTxSuccess(voteResult);
+
+      client.disconnect();
+    });
+
+    it("works with Amino JSON sign mode", async () => {
+      pendingWithoutSimapp();
+      assert(voterWalletAmino);
+      assert(proposalId, "Missing proposal ID");
+      const client = await SigningStargateClient.connectWithSigner(simapp.tendermintUrl, voterWalletAmino);
+
+      const voteMsg: MsgVoteEncodeObject = {
+        typeUrl: "/cosmos.gov.v1beta1.MsgVote",
+        value: {
+          proposalId: longify(proposalId),
+          voter: voter1Address,
+          option: VoteOption.VOTE_OPTION_YES,
+        },
+      };
+      const voteResult = await client.signAndBroadcast(voter1Address, [voteMsg], defaultFee);
+      assertIsDeliverTxSuccess(voteResult);
+
+      client.disconnect();
+    });
+  });
+  });
+});